Home / 3,853.42-5,317.78-2,174.50

Finding the Fourth Proportional to 3,853.42, 5,317.78 and 2,174.50

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Solution

The fourth proportional to 3,853.42, 5,317.78 and 2,174.50 is: 3,000.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,853.42 : 5,317.78 = 2,174.50 : x
  2. Step 2: Convert to fraction form
    3,853.42/5,317.78 = 2,174.50/x
  3. Step 3: Cross multiply
    3,853.42x = 5,317.78 × 2,174.50
  4. Step 4: Simplify right side
    3,853.42x = 11,563,512.61
  5. Step 5: Solve for x
    x = 11,563,512.61/3,853.42
  6. Step 6: Final answer
    x = 3,000.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.